On 10/26/05, Ph.D. <[log in to unmask]> wrote:
Yes, in the last ten or fifteen years, this has become a hot
trend in the United States (among those of European
ancestry). There are lots of children with first names such as
Taylor, Madison, Morgan, and Conner, all of which are
actually surnames.

I'd say that "Conner" is more likely a misspelling of "Connor" -  which has a multicentury history as a given name - than a borrowing of the surname.  Unless there was a sudden spike in the spelling "Conner" around the time of "Rifleman"'s peak popularity, I suppose. :)

There are also plenty of names that have gone the other way, many of which are only surnames by dint of losing a patronymic affix somewhere along the line.

Mark J. Reed <[log in to unmask]>